What is the effective inside measurements?

Important part is that it is 7/8" deep, a bit smaller than the size of a regular house key laying flat. This is important because when the key inevitably falls of the shallow hook, the key can barely fit in there with the door of the holder closed. If it is off the hook at the top, it must be angled up a bit before you close the compartment. The other dimensions are 2 1/4" wide and 3 7/8" high. These are all the inside dimensions of the key holder compartment.

Is it 100% waterproof?

I can't speak for it being absolutely 100% waterproof (like dropping it in a bucket or body of water I know it's not waterproof in that sense). The keypad cover will keep out rain and snow, which is important in colder climates where if water penetrates the mechanism and it freezes it could render the lockbox inoperable until it's thawed. Where I have mine mounted on a patio door rain does blow against the patio door, the keypad cover keeps water from getting in the keypad so it serves it's purpose.

Does this fit over the doorknob

Yes this lock box is designed to attach to an existing doorknob. The shackle can be locked or unlocked off of a doorknob when the lock box is opened. Thank you, NLS Products.

Do the numbers/letters have to be entered in sequence or can the correct combination be entered randomly?

Each number/letter can only be pushed once, in any sequence in random, will unlock it. As long as you have pressed the clear button each time.

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Master Lock Black Outdoor Key Lock Box with Push Buttons to Hide a Key, Easily Set, Share, and Change Combination for Tenants, Guests, Clients, Move Between Listings, 5422E

Product ID: 15375248

Details

Brand
Master Lock
Capacity
5 load
Color
Black
Included Components
lock box
Lock Type
Combination
Material
Metal

🔒5-key capacity

🔢customizable push-button combo

🌧️weather-resistant design

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$U4757

Duties & taxes included

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Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Never get locked out again—security that moves with you!

SCRATCH JAM RESISTANT - Protect your lock and door with a vinyl-coated shackle and weather cover.
WEATHERPROOF DURABILITY - Built tough with metal body and vinyl-coated shackle to withstand any climate.
SECURELY STORE UP TO 5 KEYS - Keep all your essentials in one sleek, compact lock box.
EFFORTLESS CUSTOM COMBINATION - Set and reset your personalized code with easy push-button controls.
VERSATILE WALL MOUNT CONVENIENCE - Mount it anywhere outside for instant, secure access—perfect for tenants or guests.

The Master Lock 5422E Outdoor Key Lock Box offers secure storage for up to five keys with a durable metal body and weather-resistant design. Featuring a push-button combination lock that’s easy to set and reset, it fits most door knob styles and mounts conveniently on any wall. Ideal for homeowners, property managers, and Airbnb hosts, this lock box ensures reliable, scratch-resistant protection and peace of mind in any weather.

Specifications

ASIN	B00BOSMLGS
Additional Features	Portable,Resettable
Best Sellers Rank	#6,044 in Office Products ( See Top 100 in Office Products ) #19 in Security Lock Boxes
Brand Name	Master Lock
Capacity	5 load
Chamber Depth	1 Inches
Color	Black
Control Type	Manual
Customer Reviews	4.4 4.4 out of 5 stars (3,681)
Included Components	lock box
Item Dimensions D x W x H	2.07"D x 3.18"W x 6.84"H
Item Type Name	Portable Push Button Lock Box
Lock Type	Combination Lock
Manufacturer	Master Lock
Manufacturer Part Number	5422EC
Manufacturer Warranty Description	Limited Lifetime Warranty
Material Type	Metal
Model Number	5422EC
Mounting Type	Wall Mount
UPC	071649370526

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